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zloy xaker [14]
2 years ago
5

Please help ASAP What is the value of x? Enter your answer in the box.

Mathematics
2 answers:
Iteru [2.4K]2 years ago
8 0

Answer:

x=27

Step-by-step explanation:

We have been given a diagram of 2 triangles and we are asked to find the value of x.

We can see that triangle CDQ and RDB share a common angle and line CQ is parallel to line RB.

Since the corresponding angles formed by two parallel lines are equal, therefore,

m\angle DQC=m\angle DBR

m\angle DCQ=m\angle DRB

As all the angles is both triangles are equal, therefore, \Delta CDQ\sim\Delta RDB.

As both triangles are similar, so their corresponding sides will be proportional.

We can set a proportion for the sides of our given triangles as:

\frac{x}{18}=\frac{39}{26}

\frac{x}{18}*18=\frac{39}{26}*18

x=\frac{3}{2}*18

x=3*9

x=27

Therefore, the value of x is 27.

guapka [62]2 years ago
4 0

Just took the test and got the the correct answer *\(♡°▽°♡)/*

Look at the image down below!!

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3 years ago
4(x-5) +2 =x+3 <br><br> I need help on this ! I don’t get it picture above !
algol [13]

Answer:

x=-5

Step-by-step explanation:

4(x-5)+2=x+3 As the first step says, distribute the 4 (multiply all numbers in the parentheses by 4).

4x-20+2=x-3 Combine like terms. For example, the -20 and 2 are like terms because they are both their own numbers and not attached to a variable.

4x-18=x-3       Subtract x from each side. Now, we can get x to only one side.

<u>-x       -x</u>

3x-18=-3         Add 18 to both sides.

  <u>+18 +18</u>

3x=-15            Divide both sides by 3.

<u>/3   /3</u>

x=-5

I hope this helped you!! Have a great day c:

6 0
3 years ago
What are the coordinates of a vertex of the hyperbola?
Nadusha1986 [10]

Answer: A on Edge :)

8 0
3 years ago
there's a 100 dollar stuck up 12 feet up a building and you buy a 15 foot ladder that can be safely leaned at a 60 degree angle,
maks197457 [2]
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2 years ago
Plsss helppp I’m dying!! —&gt; Complete the square to determine if the equation is a circle, quadratic equation, or other
sashaice [31]

a) The equation represents an ellipse.

b) The equation represents a circle.

c) The equation represents a parabola.

<h3>How to infer the graphical form of a general equation</h3>

In this problem we have <em>general</em> equations of the form A · x² + B · y² + C · x + D · y + E = 0, which have to be modified into <em>standard</em> form to infer its <em>graphical</em> form. This procedure can be done by <em>algebra</em> properties:

16 · x² + 4 · y² + 96 · x - 8 · y + 84 = 0

[(4 · x)² + 2 · 12 · (4 · x)] + [(2 · y)² - 2 · 2 · (2 · y)] = - 84

[(4 · x)² + 2 · 12 · (4 · x) + 144] + [(2 · y)² - 2 · 2 · (2 · y) + 4] = 64

(4 · x + 12)² + (2 · y + 2)² = 64

4² · (x + 3)² + 2² · (y + 2)² = 64

(x + 3)² / 4 + (y + 2)² / 16 = 1 : Ellipse

x² + y² + 8 · x - 6 · y - 15 = 0

(x² + 8 · x) + (y² - 6 · y) = 15

(x² + 2 · 4 · x + 16) + (y² - 2 · 3 · y + 9) = 40

(x + 4)² + (y - 3)² = 40 : Circle

x² + 6 · x + 4 · y + 5 = 0

x² + 6 · x + 5 = - 4 · y

y = - (1 / 4) · x² - (3 / 2) · x - (5 / 4) : Parabola

To learn more on ellipses: brainly.com/question/19507943

#SPJ1

4 0
1 year ago
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